14results about "Lignin material coatings" patented technology

The application discloses a PMC-fiber bundle synergistically reinforced self-adaptive ecological slope protection matrix and a preparation method and application thereof, and belongs to the field of slope ecological restoration and functional materials. The matrix is composed of a PMC-mineralization functional composite bacterial system microcapsule core, a degradable fiber bundle skeleton and a carboxymethyl cellulose sodium / potassium polyacrylate composite humidity response type hydrogel carrier three-phase composite, and can automatically regulate active ingredient release and dormancy according to soil moisture content. The application forms a four-phase synergistic reinforcement system of "microorganism-root-fiber-mineral", solves the problems of disconnection of active release of traditional matrix, mechanical empty window period and insufficient interface strength, improves the root-soil-fiber interface friction coefficient, continuously enhances the slope shear strength, prolongs the effective period to 5 years, reduces the cost by 40%, and is suitable for ecological reinforcement of various slopes such as expansive soil and coarse-grained soil.

There is provided a release agent composition containing an aqueous solvent, that is, a release agent composition for forming a release agent layer that can be released by light irradiation and is used for a laminate, in the laminate in which a support substrate and a semiconductor substrate or an electronic device layer can be firmly adhered to each other during processing of the semiconductor substrate or the electronic device layer, and the support substrate and the semiconductor substrate or the electronic device layer can be easily separated from each other by light irradiation after the substrate processing. There is provided a release agent composition for light irradiation release for forming a release agent layer of a laminate which includes a semiconductor substrate or an electronic device layer, a light-transmissive support substrate, and a release agent layer provided between the semiconductor substrate or the electronic device layer and the support substrate, in which the electronic device layer includes a plurality of semiconductor chip substrates and a sealing resin disposed between the semiconductor chip substrates, and which is used for releasing the semiconductor substrate or the electronic device layer from the support substrate after the release agent layer absorbs light irradiated from the support substrate side, in which the release agent composition contains a light-absorbing compound that contributes to making the semiconductor substrate or the electronic device layer and the support substrate easily released by absorbing the light, and a solvent, and the solvent contains water.

The present disclosure relates to fiber and a method to obtain a fiber / filament comprising lignin, the method comprising the following steps: mixing 60-90 % (v / v) of lignin with a 10 to 40%(v / v) of solvent to obtain a lignin solution; providing polymer pellets; coating the polymer pellets by spraying the lignin solution; drying coated polymer pellets for removing the solvent through evaporation; placing the dried coated pellets into a melt-spinning equipment to obtain the fiber / filament. It also relates a fiber comprising: 70 to 95% (w / w) of a polymer selected from a list consisting of polylactic acid, polyhydroxyalkanoates, polyhydroxybutyrate, polycaprolactone or their mixtures; and 5 to 30% (w / w) of lignin.

The present invention relates to a composition for the preparation of a cathode or anode of a lithium-ion battery or a sodium-ion battery, said composition comprising a lignin derivative. Furthermore, the present invention relates to (i) the use of a lignin derivative as dispersant in a composition for the preparation of a cathode or anode of a lithium-ion battery or a sodium-ion battery, (ii) the use of a lignin derivative for reducing the shear rate of a composition for the preparation of a cathode or anode of a lithium-ion battery or a sodium-ion battery, (iii) a cathode or anode of a lithium-ion battery or a sodium-ion battery prepared from the composition of the present invention, (iv) a lithium-ion battery or a sodium-ion battery comprising the electrode of the present invention, and (v) a method for the preparation of a cathode or anode of a lithium-ion battery or a sodium-ion battery.

The application discloses a graphene nanocapsule modified water-based epoxy-petroleum resin paint and a preparation method and application thereof. The water-based epoxy-petroleum resin paint is composed of component A and component B, and the mass ratio of the component A to the component B is 5.5-6.5:1. The component A is composed of a water-based epoxy emulsion, a liquid petroleum resin, graphene nanocapsules, a cosolvent, pigments, fillers, a dispersing agent, a defoaming agent, a substrate wetting agent, an anti-flash rust agent, an adhesion promoter and water. The component B is composed of a curing agent and water. The preparation method of the water-based epoxy emulsion and the graphene nanocapsules is simple and the process is stable. When the paint is prepared, the raw materials are mixed uniformly in batches according to the proportion, and when the paint is used, the component A and the component B are mixed uniformly according to the proportion. The graphene nanocapsule modified water-based epoxy-petroleum resin paint has the advantages of strong adhesion, short drying time, low VOC, excellent water resistance and salt mist resistance, and can be used in the anticorrosion field of offshore rocket launching.

The invention is the synthesis and use of epoxidized lignin (EL) preferably with but also without colloidal lignin nanoparticles (CLP, plural CLPs). The invention is divided in two parts, synthesis and utilization. The synthesis of the invention is performed in the following general steps:Preparation of an aqueous solution of lignin and a base.Combining the lignin solution with epichlorohydrin at 1-90° C., where the amount of epichlorohydrin should be within 1-20 ml per gram of lignin.Allowing the epoxidation reaction to take place between 1 minutes to 5 hours, while stirring the mixture.Removal of excess epichlorohydrin from epoxidized lignin solution by e.g. solvent extraction.EL functions as a cross-linker and may be used e.g. to prepare adhesives, surface coatings, and composite materials. EL may also be used as foaming agent in water-based solutions.

A composition capable of providing good water resistance to a substrate, a coating containing such a composition, and a method of manufacturing a water-resistant substrate are provided. The composition includes: a polyphenol compound; a fat / oil; and a lecithin. The polyphenol compound may be tannin, for example, and the lecithin may be egg-yolk lecithin or soybean lecithin, for example. The composition may further include acetic acid, and may be obtained by emulsifying a mixture of these components. The substrate may be impregnated with the composition and subjected to a drying process with ultraviolet illumination or heating to provide a water-resistant substrate with improved water resistance.

The present application discloses a kind of human solid excrement attachments, it is composed of A component, B component.A component takes rice bran as raw material, rice bran raw material is individually used as material and is called rice bran raw color material, and the pigments obtained after rice bran is colored with respectively vermilion, grape purple, fruit green colorant are respectively called red pigment, purple pigment and green pigment;B component is the dry powder obtained after organic plant root, stem, leaf, fruit shell and other organic plant fibrous substance are crushed.Then A component and B component are mixed uniformly according to weight fraction ratio, and respectively prepared to obtain colorless pigment attachment, red attachment, purple attachment, green attachment.Different color attachments are used in different environments, and different color attachments distinguish the source of human excrement, prompt the risk that people may encounter when handling, transporting and applying human excrement resources, and improve the prevention and cure consciousness in the case of possible major epidemic situation and other public health events.

The application relates to the technical field of paint, and discloses a water-based environment-friendly paint containing silica gel and a manufacturing process thereof. The water-based environment-friendly paint is formed by mixing water-based acrylate emulsion as a film-forming material and silica gel, poplar fiber reinforcing material and the like as additives. The poplar fiber reinforcing material is prepared by modifying a continuous macromolecular structure with a naphthalene ring-hindered phenol alternating connection structure on the surface of poplar fiber. The macromolecular structure can form hydrogen bond association with ester groups in the acrylate molecular chain, promotes the poplar fiber to efficiently play a pulling role, improves the strength and hardness of the coating and the oxidation resistance, the silica gel has rich pore structure, can realize heat blocking, improves the heat preservation and heat insulation effect of the paint, and by using part of low-cost fillers, the cost is reduced, the film-forming strength of the paint is improved, and the whole water-based paint formula system uses water as a solvent, meets the environmental protection requirements.

This invention discloses a method for preparing an environmentally friendly PLA-coated high-temperature and grease-resistant hot beverage cup, relating to the field of polyester biodegradable plastics technology. The specific steps of the method are: substrate pretreatment, bridging agent coating, composite coating preparation, in-situ polymerization reaction, and post-molding treatment. This invention uses a bio-based coupling bridging agent to react with the active groups on the substrate surface to form a chemically bonded layer, replacing the traditional physical adhesion method and eliminating coating peeling problems, while providing a stable substrate for composite coating polymerization. A temperature-sensitive composite coating is constructed by in-situ polymerization of PLA and PLGA, adapting to different usage scenarios and blocking the penetration of grease and heat. The entire system uses biodegradable components, ensuring simultaneous natural degradation after disposal, fully preserving the environmental protection attributes throughout the entire life cycle, and effectively solving the core pain points of traditional biodegradable hot beverage cups, such as unstable structure and insufficient practical performance.

This invention relates to an adhesive composition for rubber and articles comprising the adhesive composition. The adhesive composition for rubber according to the invention comprises naturally derived sustainable ingredients, is applicable to a wide variety of rubbers, and exhibits excellent adhesion and fatigue resistance.

This invention discloses a method for preparing and applying a mildew-proof and flame-retardant composite coating for bamboo. In the preparation method, the quaternary composite core material solution uses phytic acid–Fe²⁺. + The quaternary synergistic core material system composed of tannic acid–PG-CS organically integrates natural flame retardant components, metal ion synergists, plant polyphenol antifungal agents, and polymeric antibacterial carriers, not only through Fe² + Complexing with phytic acid promotes high-temperature char formation and improves flame retardant efficiency; Fe²⁺ is also utilized. + The oxidative stress effect and the antibacterial effect of tannic acid / PG-CS achieve long-lasting broad-spectrum antifungal properties; at the same time, by precisely controlling the reaction pH of the core material, Fe²⁺ is effectively inhibited. + Oxidative deactivation ensures functional stability. The prepared anti-mildew and flame-retardant microcapsules have a tight core wall and good dispersibility. When combined with waterborne polyurethane, they can improve the flame-retardant properties of the composite material while maintaining good mechanical properties.

This invention relates to the field of coating technology, and more specifically, to an exposed hydrophobic flame-retardant fireproof coating, comprising the following steps: preparation of caffeic acid-intercalated calcium aluminum lanthanum hydrotalcite, preparation of a water-resistant flame-retardant composite, preparation of modified sodium lignosulfonate, and preparation of the exposed hydrophobic flame-retardant fireproof coating. The water-resistant flame-retardant composite effectively utilizes the flame-retardant properties of the caffeic acid-intercalated calcium aluminum lanthanum hydrotalcite. During high-temperature combustion, the caffeic acid-intercalated calcium aluminum lanthanum hydrotalcite forms a dense composite char layer structure, effectively isolating heat and oxygen, thus improving the flame-retardant properties of the fireproof coating. Simultaneously, it also possesses good hydrophobic protective properties, enhancing the hydrophobic properties of the exposed hydrophobic flame-retardant fireproof coating. The modified sodium lignosulfonate effectively improves the UV resistance of the exposed hydrophobic flame-retardant fireproof coating, extending the coating's UV aging resistance life.

This invention relates to the field of coatings, specifically to a zero-additive anti-stick artistic coating, its preparation method, and its application. The coating comprises the following raw materials: 35%-45% water-based acrylic emulsion, 10%-20% kiwi vine extract, 3%-8% plant fiber powder, 2%-5% nano-silica, 1%-3% natural beeswax, and the balance being water; wherein the solid content of the kiwi vine extract is greater than 8%. This coating utilizes the high-retention polysaccharide components in the kiwi vine extract to construct a natural physical anti-stick layer on the coating surface. The peel force of the coating against tape and oil-based pen is ≤0.5N / cm², and the anti-sticking grade reaches level 5.